Hair drier



FIG. 1 is a front, top and left side perspective view of a hair drier showing our new design;

FIG. 2 is a rear, bottom and right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view of the portion 9 in FIG. 1.

The broken lines in the drawings illustrate portions of the hair drier which form no part of the claimed design. 

CLAIM The ornamental design for a hair drier, as shown and described. 